/**
  ******************************************************************************
  * @file    IAP_Main/Src/common.c
  * @author  MCD Application Team
  * @version 1.0.0
  * @date    8-April-2015
  * @brief   This file provides all the common functions.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/** @addtogroup STM32L4xx_IAP_Main
  * @{
  */

/* Includes ------------------------------------------------------------------*/
#include "common.h"
#include "main.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Convert an Integer to a string
  * @param  p_str: The string output pointer
  * @param  intnum: The integer to be converted
  * @retval None
  */
void Int2Str(uint8_t *p_str, uint32_t intnum)
{
  uint32_t i, divider = 1000000000, pos = 0, status = 0;

  for (i = 0; i < 10; i++)
  {
    p_str[pos++] = (intnum / divider) + 48;

    intnum = intnum % divider;
    divider /= 10;
    if ((p_str[pos-1] == '0') & (status == 0))
    {
      pos = 0;
    }
    else
    {
      status++;
    }
  }
}

/**
  * @brief  Convert a string to an integer
  * @param  p_inputstr: The string to be converted
  * @param  p_intnum: The integer value
  * @retval 1: Correct
  *         0: Error
  */
uint32_t Str2Int(uint8_t *p_inputstr, uint32_t *p_intnum)
{
  uint32_t i = 0, res = 0;
  uint32_t val = 0;

  if ((p_inputstr[0] == '0') && ((p_inputstr[1] == 'x') || (p_inputstr[1] == 'X')))
  {
    i = 2;
    while ( ( i < 11 ) && ( p_inputstr[i] != '\0' ) )
    {
      if (ISVALIDHEX(p_inputstr[i]))
      {
        val = (val << 4) + CONVERTHEX(p_inputstr[i]);
      }
      else
      {
        /* Return 0, Invalid input */
        res = 0;
        break;
      }
      i++;
    }

    /* valid result */
    if (p_inputstr[i] == '\0')
    {
      *p_intnum = val;
      res = 1;
    }
  }
  else /* max 10-digit decimal input */
  {
    while ( ( i < 11 ) && ( res != 1 ) )
    {
      if (p_inputstr[i] == '\0')
      {
        *p_intnum = val;
        /* return 1 */
        res = 1;
      }
      else if (((p_inputstr[i] == 'k') || (p_inputstr[i] == 'K')) && (i > 0))
      {
        val = val << 10;
        *p_intnum = val;
        res = 1;
      }
      else if (((p_inputstr[i] == 'm') || (p_inputstr[i] == 'M')) && (i > 0))
      {
        val = val << 20;
        *p_intnum = val;
        res = 1;
      }
      else if (ISVALIDDEC(p_inputstr[i]))
      {
        val = val * 10 + CONVERTDEC(p_inputstr[i]);
      }
      else
      {
        /* return 0, Invalid input */
        res = 0;
        break;
      }
      i++;
    }
  }

  return res;
}

/**
  * @brief  Print a string on the HyperTerminal
  * @param  p_string: The string to be printed
  * @retval None
  */
void Serial_PutString(uint8_t *p_string)
{
  uint16_t length = 0;

  while (p_string[length] != '\0')
  {
    length++;
  }
  HAL_UART_Transmit(iap_uart, p_string, length, TX_TIMEOUT);
}

/**
  * @brief  Transmit a byte to the HyperTerminal
  * @param  param The byte to be sent
  * @retval HAL_StatusTypeDef HAL_OK if OK
  */
HAL_StatusTypeDef Serial_PutByte( uint8_t param )
{
  /* May be timeouted... */
  if ( iap_uart->gState == HAL_UART_STATE_TIMEOUT )
  {
    iap_uart->gState = HAL_UART_STATE_READY;
  }
  return HAL_UART_Transmit(iap_uart, &param, 1, TX_TIMEOUT);
}
/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
